JP2003216087A - Display device and illumination device for staircase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display video on riser surfaces of staircases. <P>SOLUTION: An image separation means 11 separates an image B of a tree A fetched by a video camera 10 into a lattice-like separated image C. Light sources are arranged on the rear sides of the riser surfaces 12a of the staircases 12 so that they are made correspond one to one to the separated image C. The light sources project projected lights with colors corresponding to the separated image C from the rear sides of the riser surfaces 12a on transmission screens 12c installed on the riser surfaces 12a. Thus, the video of the tree A can be displayed on the riser surfaces 12a of the staircases 12. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase display device and a staircase lighting device, and more particularly to a staircase display device and a staircase lighting device for displaying and illuminating an image on a rise surface of a staircase.

[0002]

2. Description of the Related Art At entertainment facilities, restaurants, and the like, in order to provide entertainment to users along with the type of business, the walls and ceilings that are conspicuous are rendered with lights and images.

For example, looking at a wall or ceiling as a screen,
I am producing images with a projector.

[0004]

By the way, the rise surface of the stairs is a place that is easily noticeable and suitable for providing entertainment by images. However, the riser surface of the stairs has never been used as an object for producing images.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a staircase display device for projecting an image on a riser surface of a staircase.

[0006]

According to the present invention, in a staircase display device for displaying an image on the rise surface of a staircase, an image dividing means for converting an image into a grid-like divided image, and a pair of divided images are provided. 1 is arranged on the back side of the rise surface of the stairs so as to correspond to the light source that emits projection light, and is installed on the rise surface,
A staircase display device is provided, comprising: a transmissive screen onto which the projection light is projected.

According to the above arrangement, the image dividing means forms the image into a grid-shaped divided image. The light source is 1 for the divided image.
They are arranged on the back side of the rise surface of the stairs so as to correspond to each other, and emit projection light. The projected light is projected on a transmissive screen installed on the riser surface. As a result, an image is displayed on the riser surface of the stairs.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of the principle of the staircase display device of the present invention, and FIG. 2 is a detailed view of the staircase in FIG.
(A) is a front view of the stairs excluding the transmissive screen,
(B) is a side sectional view.

As shown in FIGS. 1 and 2, the staircase display device is
It is composed of a video camera 10, an image dividing means 11, and 6 steps of stairs 12. The image dividing unit 11 divides the image captured from the video camera 10 into lattice-shaped divided images. The image dividing unit 11 divides the image in the vertical direction into six and in the horizontal direction into seven.

The stairs 12 are arranged on the back side of the rise surface 12a so as to correspond to the divided images in a one-to-one manner. The light source 12b emits projection light and the rise surface 12a is provided with the light source 12b.
And a transmissive screen 12c on which the projection light of is projected. Seven light sources 12b are horizontally arranged behind each riser surface 12a of the stairs 12.

The operation of the above principle configuration diagram will be described. It is assumed that the video camera 10 is shooting the tree A.
The tree A is sent as the image B to the image dividing unit 11. The image B is divided into the grid-shaped divided images C by the image dividing means 11. Here, with the numbers 1 to 6 assigned in the vertical direction of the divided image C and the numbers 1 to 7 assigned in the horizontal direction,
The coordinates of the divided image C are represented by'divisional coordinates (vertical number, horizontal number) '. Also, the coordinates of the light source 12b are represented by the light source coordinates (vertical direction number, horizontal direction number) with the numbers 1 to 6 assigned in the vertical direction of the stairs 12 of the light source 12b and the numbers 1 to 7 assigned in the horizontal direction. Number) '.

Division coordinates (1, 4), (2, 3), (2,
4), (2,5), (3,3), (3,4), (3
5), (4,2), (4,3), (4,4), (4
The divided images C of 5) and (4, 6) are images of the leaves of the tree A. The divided image C at the divided coordinates (5, 4) and (6, 4) is an image of the trunk portion of the tree A.

The light source 12b is arranged in a one-to-one correspondence with the divided image C and emits projection light of a color corresponding to the divided image C. If the leaf color of tree A is green, tree A of split image C
The light source coordinates (1,4), (2,
3), (2,4), (2,5), (3,3), (3
4), (3,5), (4,2), (4,3), (4
The light sources 12b of 4), (4,5) and (4, 6) emit green projection light. If the color of the trunk of the tree A is brown, the light source coordinates (5, 4) corresponding to the trunk of the tree A of the divided image C,
The light source 12b of (6, 4) emits the projected light of brown.

The projection light emitted from the light source 12b is projected on the transmissive screen 12c installed on the rise surface 12a. As a result, the image of the tree A is displayed on the rise surface 1 of the stairs 12.
It is displayed on the front side of 2a.

In this way, the image is divided into grid-like divided images, and the light source is arranged on the back side of the stepped surface of the stairs so as to correspond to the divided images in a one-to-one manner so as to emit the projection light. A transmissive screen that projects the projected light is installed on the riser surface. Thereby, an image can be displayed on the rise surface of the stairs.

In the above description, the vertical and horizontal directions of the image are divided into 6 and 7, respectively, but it is sufficient that the divided images and the light sources have a one-to-one correspondence, and the number of divisions is not limited. .

Next, a structural example of the present invention will be described.
FIG. 3 is a diagram showing a configuration example of the embodiment of the present invention.
As shown in the figure, personal computer (hereinafter PC)
A drawing device 30a, a video camera 30b, and a robot 30c, which draw a picture by pressing the display screen with a dedicated pen, are connected to the device 20. Further, a light source arranged behind the riser surface 41 of the stairs 40 is connected to the PC 20.

The PC 20 receives images sent from the drawing device 30a, the video camera 30b, and the robot 30c. The PC 20 divides the received image into grid-shaped divided images, and transmits a video signal to the light source of the stairs 40. Also,
The PC 20 synthesizes images sent from the drawing device 30a, the video camera 30b, and the robot 30c.

The drawing device 30a captures a picture drawn on the display screen with a dedicated pen as an image and sends it to the PC 20. The video camera 30b shoots a landscape or the like and sends the image to the PC 20.

The robot 30c has a video camera attached to the portion corresponding to the eyes, the landscape is taken by the video camera, and the image is wirelessly transmitted to the receiver 30ca. The receiver 30ca transmits the received image to the PC 20.

The stairs 40 are 16 steps. Figure 4
[Fig. 4] is a partial side sectional view of stairs. The staircase 40 has a riser surface 4
1. A light source 42 that emits projection light to the back side of 1, a transmissive screen 43 installed on the rise surface 41, and is disposed between the light source 42 and the transmissive screen 43, and collects the projection light of the light source 42 on the transmissive screen 43. It is composed of a condenser lens 44 that emits light.

The light source 42 is composed of a plurality of Ls arranged in a straight line.
The LED unit 42a has an ED (Light Emitting Diode). FIG. 5 is a detailed view of the LED unit, (a) is a side sectional view, (b) is a plan view, and (c).
Is a front view. The LED unit 42a has 24 red, green, and blue LEDs arranged linearly in order. The LED unit 42a has three primary colors of red, green and blue LEDs.
Light of various colors can be emitted. 21 LED units 42a are arranged in parallel to the surface of the step board of the stairs 40.

Returning to FIG. 4, description will be made. The transmissive screen 43 is made of one piece of tempered glass whose surface is frosted. On the transmissive screen 43, the projection light emitted from the light source 42 is projected from the back side of the rise surface 41, and the projection light of the light source 42 is projected on the front side of the rise surface 41. By configuring the transmissive screen 43 with a glass plate having a frosted surface, the contour of the light source 42 can be made invisible. Moreover, by using one piece of tempered glass, the projection light of the light source 42 can be projected seamlessly.

The condenser lens 44 is composed of two Fresnel lenses 44a and 44b which are superposed. By forming the condensing lens 44 with the Fresnel lenses 44a and 44b, the thickness of the condensing lens 44 can be formed thin, and the space behind the riser surface 41 of the staircase 40 can be saved.

Next, the function of the PC 20 will be described.
FIG. 6 is a functional block diagram of the personal computer according to the embodiment of the present invention.

The PC 20 comprises an image input section 21, an image synthesizing section 22, an image dividing section 23, a color average calculating section 24, and a video signal output section 25. The image input unit 21 inputs an image of a picture drawn on the display screen of the drawing device 30a, a landscape captured by the video camera 30b, and a landscape captured by the eyes of the robot 30c.

The image synthesizing unit 22 synthesizes the images of the drawing device 30a, the video camera 30b, and the robot 30c input to the image input unit 21. The image dividing unit 23 divides the image input to the image input unit 21 or the image combined by the image combining unit 22 into 16 in the vertical direction and 21 in the horizontal direction.
To divide.

The color average calculating unit 24 calculates the average value of the colors in the grid of the divided images divided by the image dividing unit 23 in a grid shape. The intensity of red, green, and blue colors is expressed on a scale of 0 to 255.

The video signal output section 25 is a color average calculation section 24.
The signal of the average value of the colors calculated by the above is sent to the light source 42 (LED unit 42a) of the staircase 40, for example, RS-42.
2 serial transmission. LED unit 42a
As described above, each riser surface 4 of the staircase 40 having 16 steps
21 pieces are arranged on the back side of 1 in parallel to the surface of the tread. That is, they are arranged in a one-to-one correspondence with the divided images and emit projection light of a color corresponding to the divided images.

The operation of the functional block diagram will be described below. It is assumed that the picture D is drawn on the display screen of the drawing device 30a. The picture D is input to the image input unit 21 of the PC 20 as an image. The input image is divided into a grid by the image division unit 23, and the average value of the colors in each lattice is calculated by the color average calculation unit 24 (details described later). The video signal output unit 25 transmits the signal of the average value of the colors calculated by the color average calculation unit 24 to the LED unit 42a of the stairs 40. The LED unit 42a emits projection light of a color corresponding to the transmitted signal.

The projection light emitted from the LED unit 42a is condensed on the transmissive screen 43 by the condenser lens 44 of the stairs 40. That is, the picture D is displayed as an image on the rise surface 41 of the stairs 40. Similarly, images captured by the video camera 30b and the robot 30c can also be displayed on the rise surface 41.

The synthesis of images will be described. Drawing device 3
It is assumed that the picture D is drawn on the display screen of 0a. Further, it is assumed that the tree E is photographed by the video camera 30b. Picture D, tree E
Is input to the image input unit 21 of the PC 20 as an image. When synthesizing images, the input image is sent to the image synthesizing unit 22. The image combining unit 22 combines the images of the picture D and the tree E.

The combined image is divided into a grid by the image dividing section 23, and the average value of the colors in each grid is calculated by the color average calculating section 24. Video signal output unit 25
Sends the signal of the average value of the colors calculated by the color average calculation unit 24 to the LED unit 42 a of the staircase 40. L
The ED unit 42a emits projection light of a color corresponding to the transmitted signal.

The projection light emitted from the LED unit 42a is condensed on the transmissive screen 43 by the condenser lens 44 of the stairs 40. In this way, the composite image of the picture D and the tree E as shown in FIG. 3 can be displayed on the rise surface 41 of the stairs 40.

The calculation of the average value of colors will be described. Figure 7
6A and 6B are explanatory views illustrating the average value of colors, FIG. 9A is a divided image, and FIG. 9B is an image in which the average value of colors is calculated. It is assumed that the image of the character'S 'is input to the image input unit 21. It is assumed that the letter'S 'itself is black and the background is white. The image of the character'S 'input to the image input unit 21 is divided by the image division unit 23 into a lattice shape as shown in FIG. Here, as shown in the enlarged view of FIG.
There is a part of the character'S 'and a part including the background in the grid.

The color average calculator 24 calculates the average value of the colors in the grid. If all of a certain grid is covered with a part of the letter'S ', the average value of the colors in the grid is black. Also, if all of a certain grid is covered with a part of the background, the average value of the colors in the grid is white. Further, as shown in the enlarged view of FIG. 7A, the average value of the black of the character “S” itself and the white of the background is calculated for the part including the character “S” and the background in the lattice. , The grid part is gray. In FIG. 7B, the shaded area is a gray area, and the number of shaded areas indicates the shade of color. In this way, the average value of the colors is calculated and the image is displayed on the rise surface 41 of the staircase 40.

In the above description, the vertical direction and the horizontal direction of the image are divided into 16 and 21, respectively, but the divided image and the light source have a one-to-one correspondence, and the number of divisions is not limited.

Further, data of various images may be stored in the PC 20, and the stored images may be displayed on the rise surface 41. Also, this image may be programmed and displayed on the PC 20 to move. At this time, it is possible to enhance the entertainment property by moving and displaying the image with a fluctuation of 1 / f and displaying the image along with the sound.

An image similar to that of the staircase display device is divided into grid-like divided images, and a staircase is inserted so that a light source for emitting illumination light of a color corresponding to the divided image has a one-to-one correspondence with the divided images. The staircase lighting device can be illuminated by a staircase lighting device that is disposed on the back side of the surface and has a transmissive screen on which the illumination light is projected.

[0040]

As described above, in the staircase display device of the present invention, the image is a grid-shaped divided image, and the light source for emitting the projection light corresponds to the divided image in a one-to-one correspondence. It was arranged on the back side, and a transmissive screen on which the projection light of the light source was projected was installed on the rise surface of the stairs. Thereby, an image can be displayed on the rise surface of the stairs.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of a staircase display device of the present invention.

2A and 2B are detailed views of the staircase in FIG. 1, in which FIG. 2A is a front view of the staircase excluding a transmissive screen, and FIG.

FIG. 3 is a diagram showing a configuration example of an embodiment of the present invention.

FIG. 4 is a partial side sectional view of stairs.

FIG. 5 is a detailed view of the LED unit, in which (a) is a side sectional view, (b) is a plan view, and (c) is a front view.

FIG. 6 is a functional block diagram of the personal computer according to the embodiment of the present invention.

7A and 7B are explanatory diagrams for explaining an average value of colors, FIG. 7A shows a divided image, and FIG. 7B shows an image for which an average value of colors is calculated.

[Explanation of symbols]

10, 30b ... Video camera, 11 ... Image dividing means, 12, 40 ... Stairs, 12a, 41 ... Facing surface, 1
2b, 42 ... Light source, 12c, 43 ... Transmissive screen, 20 ... Personal computer, 21 ... Image input section, 22 ... Image combining section, 23 ... Image dividing section, 24
...... Color average calculation unit, 25 ...... Video signal output unit, 30a
... drawing device, 30c ... robot, 30ca ... receiver, 42a ... LED unit, 44 ... condensing lens,
44a, 44b ... Fresnel lens.

Claims (11)

[Claims] 1. A staircase display device for displaying an image on a rise surface of a staircase, comprising: an image dividing means for dividing an image into a grid-like divided image; and a riser surface of the staircase so as to correspond one-to-one to the divided images. A staircase display device comprising: a light source that is disposed on the back side and emits projection light; and a transmissive screen that is installed on the riser surface and that projects the projection light. 2. The staircase according to claim 1, further comprising a color average calculating means for calculating an average value of colors of the divided images, wherein the light source emits projection light of the average value of the colors. Display device. 3. The staircase display device according to claim 1, further comprising image input means for inputting the image. 4. The staircase display device according to claim 3, wherein the image input means is a video camera. 5. The staircase display device according to claim 3, wherein the image input means is a drawing device that draws a picture by touching a screen. 6. The staircase display device according to claim 1, wherein the light source is a plurality of LEDs arranged in parallel with a step surface of the staircase. 7. The staircase display device according to claim 1, further comprising a condenser lens disposed between the light source and the transmissive screen to condense the projected light on the transmissive screen. . 8. The staircase display device according to claim 7, wherein the condenser lens is a Fresnel lens. 9. The staircase display device according to claim 7, wherein the condensing lens is configured by stacking two sheets. 10. The transmissive screen is a glass plate having a frosted surface.
Display device for stairs described. 11. A stairway lighting device for illuminating the rise surface of a staircase, comprising: an image dividing means for dividing an image into a grid-like divided image; and a backside of the riser surface of the stairway so as to correspond one-to-one to the divided images. A staircase lighting device comprising: a light source that is disposed and emits illumination light; and a transmissive screen that is installed on the riser surface and projects the illumination light.